[clang] [analyzer] Add std::variant checker (PR #66481)

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git-clang-format --diff ce8b8b1639bc9592d2db291db4bb289b0434de26 1042ac6fdde192aa7fa1a74f707a4fede9861b38 -- clang/lib/StaticAnalyzer/Checkers/StdVariantChecker.cpp clang/lib/StaticAnalyzer/Checkers/TaggedUnionModeling.h clang/test/Analysis/std-variant-checker.cpp clang/include/clang/StaticAnalyzer/Core/PathSensitive/CallEvent.h clang/lib/StaticAnalyzer/Core/CallEvent.cpp clang/test/Analysis/Inputs/system-header-simulator-cxx.h clang/test/Analysis/diagnostics/explicit-suppression.cpp
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diff --git a/clang/include/clang/StaticAnalyzer/Core/PathSensitive/CallEvent.h b/clang/include/clang/StaticAnalyzer/Core/PathSensitive/CallEvent.h
index 3aa27fd1d..653ab446f 100644
--- a/clang/include/clang/StaticAnalyzer/Core/PathSensitive/CallEvent.h
+++ b/clang/include/clang/StaticAnalyzer/Core/PathSensitive/CallEvent.h
@@ -455,7 +455,7 @@ public:
   /// If the call returns a C++ record type then the region of its return value
   /// can be retrieved from its construction context.
   std::optional<SVal> getReturnValueUnderConstruction() const;
-  
+
   // Returns the CallEvent representing the caller of this function
   const CallEventRef<> getCaller() const;
 

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https://github.com/llvm/llvm-project/pull/66481